John r



(No Model.)

J. RPOSTBN.

VEHICLE HUB. e l l Patented Jan.3,1882.

lN. PETERS. Ptmmuhngnpher, washington, D. C.

UNITED STATES PATENT OEEICE.

JOHN POSTEN, OF PLEASANT GREEK, ASSIGNOR OF ONE-HALF TO EMORY L. RECTORAND WILLIAM A. RECTOR, BOTH OF GRAFTON, W. VA.

VEHICLE-HUB.

SPECIFICATION forming part of Letters Patent No. 251,794, dated January3, 1882. Application mea November 21, 1881. (No moan.)

To albufhom it may concern Be it' known that I, JOHN R. POs'l EN, acitizen of the United States, residing at Pleasant Creek, in thelcountyof Barbour and State of West Virginia, haveinvented certain new anduseful Improvementsiu Vehicle-H u bs, of which 'the following is aspecification, reference being had therein to the accompanying drawings.

My invention relates to vehicle-hubs and it Y consists in theconstruction and arrangement of its several parts, as will behereinafter more it, around which `projects the shoulder a and l A2 andthe spokes.

through which isplaced theh ub-box a ,as shown. At equal distancesaround the periphery of the plate are cut mortises which receive thespokes. These mortises extend through into the groove and allow the endsot" the spoke-tenons to project into it, as shown. The spokes are madewithout shoulders and are ot' the same thickness their entire length, asshown.' The plate A is provided with a washer, a2, on its inner end.lttitssnuglyoverthehub-box,andwithits washer forms an air-tight unionwith the plate Upon both ends ot' the hub are placed brass boxes a4,which can be removed when worn out and replaced by new ones. The platesare secured together by bolts a3. In the annular grooveareplacedexpansionblocks C, which are curved to conform to the curvatureofthe outer side ofthe groove, and which press firmly against thebottoms ofthe spokes. Between the inner side of the blocks O and theannular shoulder a are set-screws D,

The screws are pivoted around the shoulder a by pivot-pins d, and areprovided with heads d and lock-nuts d2, as shown. The outer ends of thescrews operate in threaded holes through the blocks C, as shown, thelock-nuits d2 acting to prevent the screws from slackening up andloosening the blocks.

E is an oil-hole cut through the plate A2 into the annular groove, andis closed by the screw e. The oilfills the interior groove, which actsas 5o a reservoir for it, and is lct onto the axle-arm through groovesin the end of 'the shoulder a and holes in the hubboX. The oil isprevented from escaping by the washer a2, which forms an air-tight unionbetween the spokes and the plates. f As the tire of the wheel becomesloosened from constant wear by removing the plate A and tightening upthe screwsD .the eXpansion-blocks will be forced against the bottoms ofthe spokes and will press them outward, 6o which operation expands thefully of the wheel tightly against the tire.

When it is necessary to replace a broken or worn out spoke the plate Acan be removed,

the old spoke taken out, and a new one inserted. i

To do this the wheel need not be removed.

What I claim is- 1. A hub consisting of the plates A A2, the plate A2having an annular shoulder, ,formed around the hub-box, and adapted toreceive V7o the pivot-'pin d of the screws D, substantially as shown anddescribed.

2. In a hub, the screws D, pivoted in the annular shoulder a by thepivot-pins d, and provided with `heads d' and lock-nuts d2, operat- 75ing in combination with the expansion-blocks C and shoulder a,substantially as and for the purposes set forth. Y

3. The expansion-blocks G, curved to oonform with the' curvature of thegroove, oper- 8o ating in combination with the screws D and the spokes,and adapted to keep the spokes pressed firmly outward,substantially asiand for the purposes specified.

4. In a hub, the combination of the plates A A2, expausioirblocks O,screws D, and shoulder a with the spokes, substantially as shown anddescribed.

In testimony whereof' I affix my signature in presence of two witnesses.

` JOHN R. POSTEN.

Witnesses:

H. W. UPPERMAN, W. J. OsGooD.

